var $startup={
	get XPCOM(){
		return Components.classes["@mozilla.org/toolkit/app-startup;1"].getService($startup.ci);
	},
	ci:Components.interfaces.nsIAppStartup,
	restart:function(){
		$startup.XPCOM.quit($startup.ci.eRestart | $startup.ci.eAttemptQuit);
	},
}